Dorman 904-642 diesel exhaust fluid (def) heater for the 2014-2018 Mercedes-Benz Sprinter 4-cylinder 2.1L and other vehicles heats the diesel exhaust fluid. Fluid getting into the factory heater is a common failure point on certain vehicles; this Dorman OE FIX version changes the OEM design and adds protection against it.
- Dorman OE FIX heater with added protection from fluid intrusion
- Cyclical heater element fatigue testing on each design
- Plastic housing with O-ring inlet and outlet fittings
- Two male electrical connectors with PVC-insulated wire
Quick facts
- Part: Dorman 904-642 diesel exhaust fluid (def) heater
- Fits: 2014-2018 Mercedes-Benz Sprinter 4-cylinder 2.1L and other vehicles
- Material: Plastic housing
- Condition: New
A DEF warning light or a heater fault can mean the heater has failed, but wiring and connector damage can show the same signs. Before you replace the heater, rule out a damaged connector or a wiring fault, and have the DEF system tested at a shop.
Fits
This heater is listed for a wide range of Mercedes-Benz and Freightliner Sprinter models, including the 2014-2017 Mercedes-Benz Sprinter 2500 4-cylinder 2.1L and the 2014-2017 Mercedes-Benz Sprinter 3500 4-cylinder 2.1L. The quantity is one heater per vehicle. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Inside diameter: 4.3 in
- Height: 9 in
- Quantity per vehicle: 1
- Electrical connectors: 2, male
Build and materials
- Housing material: plastic
- Inlet and outlet fittings: O-ring
- Wire insulation: PVC
- Condition: New
- Country of origin: China
In the box
One heater assembly, one cap and mounting hardware. A hose is not included.
Interchange: F01C600228 · 9064700353 · A9064700353 · EM2406URH
This part cross-references / interchanges with the following part numbers:
F01C600228, 9064700353, A9064700353, EM2406URH
Frequently Asked Questions
Does this Dorman DEF heater fit the 2014-2018 Mercedes-Benz Sprinter 4-cylinder 2.1L?
Yes. Dorman 904-642 is listed for the 2014-2018 Mercedes-Benz Sprinter 4-cylinder 2.1L, and each vehicle takes one heater.
Does the 904-642 DEF heater come with the cap and mounting hardware?
Yes. The box holds one heater assembly, one cap and mounting hardware. A hose is not included.
What size and fittings does Dorman 904-642 have?
This heater has a 4.3 in inside diameter, a 9 in height, and O-ring inlet and outlet fittings. The housing is plastic.
Why is this heater called an OE FIX part?
The factory heater on certain vehicles often fails from fluid intrusion. This version modifies the OEM design to address that failure point and increase reliability.
Is A9064700353 a cross-reference number for this heater?
Yes. A9064700353 is among the cross-reference numbers listed for Dorman 904-642.
